Pass value from one scene to other in iOS app using Swift

Code of ViewController (code of file from where you want to pass value):

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var txt1: UITextField!

    override func viewDidLoad() {

        super.viewDidLoad()

       

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

      

    }

    @IBAction func ClickToPass(_ sender: Any) {

        let mmi  = self.storyboard?.instantiateViewController(withIdentifier: "Second") as! SecondViewController

       

        mmi.passedvalue = txt1.text!

        self.navigationController?.pushViewController(mmi, animated: true)

    }

    

}

Code of SecondViewController (code of file where you want to get value):

import UIKit

class SecondViewController: UIViewController {

    @IBOutlet weak var label1: UILabel!

    var passedvalue = String()

    override func viewDidLoad() {

        super.viewDidLoad()

        label1.text = "Passed value= " + passedvalue

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

}

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